Surgical arm chair



y 15, 1929- P. JKUREGUI 721,221

SURGICAL ARM CHAIR Filed Feb. 8, 1927 5 SheetsSheet 1 fizaure ui y 16, 1929- P. JI KUREGUI 1,721,221

SURGICAL ARK CHAIR Filed 192'7 s Sheets-Sheet 2 ame ui July 16; 1929.

P. JKUREGUI SURGI CAL ARM CHAIR Filed Feb. 8, 1927 3 sheets Sheet 5 for arm-rests orientable in any direction, and

PEDRO JVAUBEG-UI, on mm; m me. j

SURGICAL ARM CHAIR. I

Application fi1ed Februar 8, 1927, Serial No. 166,750, and in Argentina a ri1f14," 926.1

The present invention relates to a surgical arm-chair adapted to facilitate operations to the head, upper limbs and thorax and, for that purpose, capable of holding the patient n any of the positions most favourable for this kindof operations.

' I To that effect, the invention is'characterized V by the combination, with an axial rod'carryinga seat andthe height of whichis adjustable relatively to a pedestah'of radial arms* capable both of pivoting aboutthe said axial rod, of moving along the latterand to lock 1n the chosen position, one of these radial arms carrying foot-rests which can be orientated about an are, preferably horizontal, and the other, connected rods orientable about an axis,

preferably horizontal, and serving as slides "serving also as'supports for a back and a head-rest adjustable in position.

- The accompanying drawing illustratesfloy' way of example only, a formof construction of a surgical arm-chairor vertical surgical table such as above outlined. v

Fig. 1 is a front view of the arm-cha r.

Figs. 2 and 3 are respectively the corre-= sponding side view and plan view of Fig. 1.-

7 carries at its upper part a seat, preferably me- Fig.4 shows the arm-chai'rin position of use for an operation on the head, forehead.

face, or upper limbs. 3 Fig. 5 shows the arm-chair with a patient in position for an operation on thelateral and back regions of the head, the nape of the neck or the dorsal region of the thorax, this po'si tion being known as jockey position.

Fig.'6 shows the'arm-chair in position for i an operation on the, lateral region of the thorax."

Fig. 7 is a perspective view, showing the' arm-chair in position for an operation on the lateral region of the face,

The arm-chair comprlses a supporting ped-" estal, preferably of. cast-iron, of the type gen erally employed in dentist arm-chairs, consist ing of a central part 1 and feet '2' resting on the ground. vOne of said feet 2 I at least is provided with a'screw 3 the point of which is adapted to slightly enter into the, floor of the operating room for ensuring the adherence of.

the arm-chair thereto.

In an axial bore of the central part 1 is fit-r ,ted a hollow rod l-provided with an'operat ing han'd-wl'leel 5 and immobilized in theaxial direction in any suitable manner. Into said rod 4 is screwed a screw-threaded rod 6 which screw 12.

tallic', having substantially the shape of a'saddle, provided with lugs 7 'f0r receiving straps 8 serving to immobilize the patient by holding him by the thighs or the hips Byinanipulating the handwheelh, theheig-ht of the seat above the ground can be adjusted at will andjthe seat can be locked in thechosen posi- 6 are mounted two radial arms 7 nallyscrew threaded eye 9 in whiclrismount- 5 ed 'a screw 10 provided with an operatinglever top'ermit loc'kingof the emeritus in a predetermined angular IJOSltiOIl and-ata pre determinedplevel V The lower arin 7 carr1es, at'its free end,'a tubular cross member 11' also provided with a locking screw 12 and in which fits a horizontal ."crossinembef'the ends of which carry two arms 13 of s uare sections 'The 'lower "part of each arml3 ca'rriesaslidellfdf shoes 15 inade of pressedshect iron foriiistancefin which fitthe feetfof'th e patient. Said shoes 15 are provided with straps 16 of any-suitable I form-which serve to secure thefee'tof the Said shoes.arelpreferably made mam t'ient. parts capable of sliding relatively' to each other, so asto adapt theinselvesto'the length ofthe feet of the patientgfThe arm's-135B "adapted'to be orientated about the theoretical axis of the cross-member 1 1 and locked in the desiredangular position by means of lock The upper arm 8 is provided, at'itsfree end with a cross member'18 the .e ndsof which are pivoted two uprights 191pre'fer ablyeonnectcd together by a cross' nieinber =20 (Fig. 1) andjoinedtogether atthe'ir' upper extremities by ahead res'tQl journalled' at so thatit'can'he orientatedtlat will and locked in the position'chosen by lock screws 28 or other equivalent means provided for that purpose. fPreferably, the uprights are tubular and. in V two parts 25 and 25' telescopically' mounted with locking screws 2.4L," to "allow adjusting thei he'ight of rest21 relative to the seat. V e p The parts25 of: the uprights. 19 serve as supports for radial arms 26;passing through heih e sockets'27' of parts 19; Said socketsare ro:

-vided witlilo'cking screws 28 which: permit adjusting of their "height along the upright and their angular orientation ther'eabout;

flhef-arm's. serve as supports ffor rods 29 v of' channelmembers 30 forming arm-rests. Theconnection between the arms 26 and the rods 29 is preferably effected through the medium of a .double joint 30*, of well known construct-ion, which permit the rod 29 to pivot about and slide along the longitudinal axis thereof; and rod 29 and joint 30 to pivot and slide relatively to the arms 26. A locking screw 31permits locking of the joint 30 and the rod 29 in the respective positions chosen. V

The arm-rests 30 are, for instance, made of pressedsheet-iron, and secured to the rod 29 provided with lugsl32 at its upper part.

vThe arm-rests .30 are preferably internally lined witha quilted packing of any suitable nature and-arrangement; and are provided with straps 33 permitting to immobilizethe I fore-arms ofthe patient. 7

The arms 26 are normally arranged on the uprights '19, above the cross-member 20 which supports 13 on the arm 7 ;The lower branch 14. might even be pivoted, for instance by forms the back, but since cross member 20 is i simply traversed atits ends by the upper up rights 25 and provided with looking screws 20, it may be removed so as to permit of mounting the arms 26 on the rods 25, if necessary, for causing the patient to occupy a predetermined position Y V j The arm-chair just described is susceptible tomodification. The cross-member 18 might, a for instance, be jointed along the theoretical Q Xis thereof. This would give to the arms 19 a greater freedom and would allow them to occupy any position in space. The same arrangement might be applied for fitting the meansof a ball and socket oint, on the upper branch 13 of. the supports of the foot-rests, so as to give to these supports any desired position. l

7 Fig. 4 shows the arm-chair in position for operating on the forehead and face, on the ,throat on the front part ofthe thorax or on the arm-chair for placing the patient in'the most favourable position.

,theupper limbs of a patient. A simple inspection of Fig. 4 will reveal the relative positions adopted for the various elementsof Fig. shows the arm-chair used for holdinga patient who is to be operated uponjon theback part of the head, nape of the neck,

in two planes at-right angles and the patient or the rear region of the thorax and in par- 5 position known ticular the spine. This is the ,as the jockey position. v

InFig; 6, the arms 7 and 8 are arranged lays one side of his head on the head-rest, one of his arms being held in the' channelmember 30, whilst the other arm is retained, in the position shown, by straps which can i be easily attached to one of the uprights 25.

This arrangement. can be adapted for an operation on the lateral region of the thorax.

shows the arm-chair used for an operation on the lateral face of the head.

The arm rests 30 are placed in the positions shown, and the patient lays the side of his head, which is not to be operated, on the head-rest 21.

The advantages of the surgical arm-chair 'orvertical surgical table which has just been described, result "from the fact, sanctioned by experience, that the most favourable position for operating on a patient on the head, the thorax or the upper limbs, is preferably a. seated position with proper inclination.

the preferablyform, of my device I do not wish to be limited thereto as-there might be various changes made in the details of construction and the arrangement of parts without departing from the spirit ofthe 1nVen tion comprehended within the sconeof the i appended claims.

hat I clalm as my inventlon and desire tosecure by Letters Patent is 1. In a surgical chair of the type described, an adjustable central supporting rod, a seat on said rod, a pair of adjustable arms carried by said rod, a cross. arm carried by one of said arm's a pair of upwardly extending rods carried by said cross arm, an adjustable head rest interconnecting theextremities of said upwardly extendingrods, an adjustable arm on each of said upwardlyextending rods, an adjustable armrest on each of said'last mentioned rods, a cross-arm carried bythe other ofsaid first mentioned arms, a pair of'downwardly extending rods on said last mentioned cross arm and an adjustable foot rest carried by each of said last'mentioned arms.

. v 2, In-a surgical chair of the type described,

an adjustable central supportingrod, a seat on said rod, a pair of ad ustable arms carried vby ,sald rod, a cross arm carried one of said arms, a pair of upwardly extending rods carried by said cross arm, an adjustable head rest interconnecting the extremities of said upwardly extending rods, an adjustable arm on each of said upwardly extendingrods, an ad ustable arm rest on each of said lastmentioned rods, a cross armcarried by theother of said first mentioned arms, a pair of downwar dly extending rods on said last mentioned cross arm, an ad ustable foot rest carried by each of'said last mentioned arms, and strap receiving means formed in said foot rests, said arm rests and said seat. U a j '3. In a surgical chair of the type described,

an adjustable central supporting rod, a seat the other of said lirst mentioned arms, a pair of downwardly extending rods on said last mentioned cross arm and an adjustable foot rest carried by each of said last mentioned arms. j

i. In a surgical chair of the type described, an adjustable central supporting rod, a seat on said rod, a pair of adjustable arms carried by said rod, a cross arm carried by one of said arms, a pair of upwardly extending rods carried by said crossarm, an adjustable head rest interconnecting the extremities of said upwardly extending rods, an adjustable arm on each of said upwardly extending rods, an adjustable arm rest on each of said last mentioned rods, a cross arm carried by the other of said first mentioned arms, a pair of downwardly extending rods on said last mentioned cross arm, an adjustable foot rest car ried by each of said last mentioned arms, and

detachable means for bracing said upwardly extending rods.

5. In a surgical chair of the type described,

, an adjustable central supporting rod, a seat on said rod, a pa1r of ad ustable arms carried by said rod, a cross arm carried by one of said arms, a pair of upwardly extending rods carried by said cross arm, anadjustable head rest interconnecting the extremities of said upwardly extending rods, an adjustable armon each of said upwardly extending rods, an adjustable channel-shaped armrest on each of said last mentioned rods, a cross arm carried by the other of said first mentioned arms, a pair of downwardly extendlng rods on sand last mentioned cross arm and'an adjustable foot rest carried by each of said last mentioned arms.' j v I 6. .In a surgical chair of the typedescribed,

, an adjustable central supportingrod, a seat on said rod, a pair of adjustable arms carried by said rod, a cross arm carried by one of said.

arms, a pair of upwardly extending rods carried by said cross arm, an adjustable head rest interconnecting the extremities of said upwardly extending rods, an adjustable arm on each of said upwardly extending rods, an

adjustable arm rest on each of said last men tioned rods, a cross arm carried by the other of said first mentioned arms, a pair of down wardly extending'rods on said last mentioned cross arms, an adjustable foot rest carried by each of said last mentioned arms, a pedestal for central supporting. rod and a thumb screw, carried by said pedestal adapted to engage a hole in the floor. 7

In testimony whereof I have signed name to this specification.

f PEDRO JAUREGUI. 

